Tag: low voltage vs line voltage

You’ve probably heard the term “low voltage” or “24v” while researching smart thermostats – but if you’re early in your research, you might not yet know the difference. The difference is critical: today’s best-known smart thermostats (from manufacturers like ecobee, Nest, and Honeywell) are designed only for low voltage systems. You’ll need to be sure… Read more

The C-Wire, or “common wire” enables the continuous flow of 24 VAC power to the thermostat. It’s a wire that (if you have one) runs all the way from your furnace to your thermostat. Questions about the C-wire are by far the biggest drivers of traffic to this site, so I’ve written this article to help you… Read more

Best smart thermostat for most homes

With Alexa built in, support for smart room sensors and included wiring adapter, the ecobee4 is our top pick for most homes. Read our full review »

2018 Shopping Guide

Give (and get!) the best WiFi thermostats this year with our newly updated shopping guide »

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